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carbon paste electrode nafion

Determination of copper(Ⅱ) based on poly(p-aminobenzoic

Graphene-nafion composite was coated on glassy carbon electrode surface,and then p-aminobenzoic acid was modified on it to fabrie poly(p-aminobenzoic acid)/graphene

Open Repository of National Natural Science Foundation of

2016-12-8 · Sensing nitric oxide with a carbon nanofiber paste electrode modified with a CTAB and nafion composite

Electrochemical Properties of Modified Carbon Paste …

2014-6-19 · Copper hexacyanoferate film was prepared electrochemically on carbon paste electrode and was tested for detection of nitric (II) oxide in comparison with unmodified electrodes. Modified electrode could be operated under physiological conditions (pH 7.5, 0.1 M phosphate buffer), with an operating potential of ﹣400 mV (vs. Ag/AgCl) in hydrodynamic amperometry.

Electroalytic Response of Dopamine at an Iron

2008-8-8 · Abstract Iron nanoparticles (INPs) were dispersed in Nafion solution to obtain a homogeneous INP-Nafion dispersion, and then a drop of this dispersion was cast on the surface of a carbon paste electrode (CPE) to fabrie an INP-Nafion-modified electrode. The electrochemical behavior of dopamine (DA) at this modified electrode was studied by cyclic voltammetry in a pH 7.0 Britton …

An electrochemical biosensor based on Nafion-ionic …

Request PDF on ResearchGate | An electrochemical biosensor based on Nafion-ionic liquid and a myoglobin-modified carbon paste electrode | An electrochemical biosensor was …

Reusable hydrazine amperometric sensor based on Nafion

2015-12-26 · age: hydrazine amperometric sensor based on Nafion ® -coatedTiO 2 –carbon nanotube at coumestan modified carbon paste 18

Chemically modified carbon paste electrodes in

Mehran Ghiaci, Behzad Rezaei and Mohammad Arshadi, Characterization of modified carbon paste electrode by using Salen Schiff base ligand immobilized on SiO2–Al2O3 as a highly sensitive sensor for anodic stripping voltammetric determination of copper(II), Sensors …

A Simple and Sensitive Method for the Detection of Trace …

Nafion-coated antimony film electrode (NCAFE) was prepared in situ by simultaneously plated antimony with film carbon paste electrode for measurement of trace

Voltammetric determination of theophylline at a Nafion

2019-4-9 · TP could effectively accumulate at Nafion/MWNTs composite film-modified electrode and cause a sensi-tive anodic peak at around 1180 mV (vs SCE) in 0⋅01 mol/L H2SO4 medium (pH 1⋅8). In contrast with the bare glassy carbon electrode, Nafion film-modified electrode, Nafion…

A Simple and Sensitive Method for the Detection of Trace …

Nafion-coated antimony film electrode (NCAFE) was prepared in situ by simultaneously plated antimony with film carbon paste electrode for measurement of trace

Polymethylthiophene/Nafion-modified glassy carbon

In comparison to the GC/PMeT electrode, the glassy carbon (GC/Nafion/PMeT) electrode modified with hybrid film Nafion/PMeT was found to permit a superior separation by shifting the oxidation of AA peak toward the less positive potential.

,Modify carbon paste electrodes,,,

2018-10-1 · Investigation on the determination of trace ascorbic acid on modified carbon paste electrode and its appliion;

Voltammetric Determination of Ferulic Acid by

A simple and rapid method for the determination of ferulic acid in pharmaceutical formulations by didodecyldimethylammonium bromide (DDAB)/Nafion composite film-modified carbon paste electrode …

Direct electrochemistry of glucose oxidase on the

2016-11-6 · (GOD) on a hy-droxyapatite (HAp)/Nafion composite film modified glassy carbon electrode of glucose oxidase immobilized on colloidal gold modi-fied carbon paste

Polymethylthiophene/Nafion-modified glassy carbon

In comparison to the GC/PMeT electrode, the glassy carbon (GC/Nafion/PMeT) electrode modified with hybrid film Nafion/PMeT was found to permit a superior separation by shifting the oxidation of AA peak toward the less positive potential.

Selective voltammetric method for uric acid detection

2007-6-28 · case of the carbon paste electrode reported earlier,15 where the electrode material was found to become swollen after prolonged use, the GCE shows good stability even after prolonged use. Experimental Chemicals and reagents Nafion perfluorinated ion-exchange powder as a 5% m/v solution in a mixture of lower aliphatic alcohols and 10% water

Determination of morphine at gold nanoparticles / …

The increasing popularity of Nafion for the fabriion of modified electrodes in recent years arises from easy fabriion, good electrical conductivity and high partition coefficients of many redox compounds in Nafion. 1 Nafion has been often used in the modifiion of carbon paste electrode , 2,3 glassy carbon electrodes, 4 carbon fiber

A selective voltammetric method for uric acid …

Carbon paste was prepared in a conventional fashion by thoroughly hand-mixing 70 wt% graphite powder and 30 wt% mineral oil in a mortar with a pestle. The carbon paste was packed into the hole of the electrode body and smoothed off on a sheet of weighing paper. A Nafion® solution (5 wt%) was then spin-coated on the CPE surface at 3000 rpm.

Electroalytic oxidation and determination of dopamine at …

The electroalytic oxidation of dopamine(DA)was studied by electrochemical approaches at a carbon ionic liquid electrode(CILE)modified with the composite film of nafion

Voltammetric Determination of Ferulic Acid by

A simple and rapid method for the determination of ferulic acid in pharmaceutical formulations by didodecyldimethylammonium bromide (DDAB)/Nafion composite film-modified carbon paste electrode …

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2014-6-12 · Zhang Ya, Zheng Jianbin, An ionic liquid bulk-modified carbon paste electrode and its electroalytic activity toward p-aminophenol, Chinese Journal of Chemistry, 2007

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2014-5-4 ·  Carbon nanotubes paste electrodes carbon paste electrode MWNTs-GCE nano-TiO2/Nafion /GCE film

Determination of Paraquat after Adsorption by two …

It is however noteworthy to mention that a better detection limit has achieved by Chtaini et al. by square wave voltammetry at natural phosphate modified carbon paste electrode. A key advantage of the present study the simplest method to modify the glassy carbon electrode which led to on a very inexpensive but quite sensitive sensor.

Simultaneous Voltammetric Determination of Uric …

The pretreated MWCNT is well dispersed in the alcoholic solution of Nafion under the ultrasonic agitation, and the resulted suspension is used as modifier (with 10% w/w) in the matrix of the paste electrode. The prepared electrode further modified by addition of 3 wt% of CoNSal.

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13 Junjie Fei, Shengshui Hu*. Osmium Redox Polymer Film Electrode and Its Electroalytic Properties towards the Oxidation of Epinephrine: Electrochemical Quartz-Crystal

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(31) Voltammetric determination of ferulic acid by didodecyldimethylammonium bromide/Nafion composite film modified carbon paste using bismuth-film modified

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